The proprietor of CN Massage allegedly collected a “door fee” from customers, recruited young women from out of state and sometimes turned tricks for johns herself, according to federal court documents.

Mi Soon Hwang, of Los Angeles, was indicted Tuesday by a federal grand jury on a violation of the U.S. Travel Act by using mail or interstate commerce to promote a “business enterprise involving prostitution.”

Hwang faces immediate forfeiture of property used by the alleged brothel, and if convicted, a penalty of up to five years in prison and a $250,000 fine, according to court records.

On Tuesday, she pleaded not guilty in Magistrate Judge Michael E. Hegarty’s courtroom. She was released on her own recognizance.

The business allegedly operated between October 2011 to Sept. 21, 2012 in Aurora. Hwang staffed the business with one to three women and worked as a prostitute herself, court records say.

“In exchange for money, the prostitutes would provide massages as well as routinely perform sexual acts for customers,” court records say.

Hwang had a “front person,” a “working girl” with the initials H.H., sign the lease documents for the business.

CN Massage also provided housing for prostitutes. She also hired employees to cook and clean towels and linens, the record says.

Kirk Mitchell is a general assignment reporter at The Denver Post who focuses on criminal justice stories. He began working at the newspaper in 1998, after writing for newspapers in Mesa, Ariz., and Twin Falls, Idaho, and The Associated Press in Salt Lake City. Mitchell first started writing the Cold Case blog in Fall 2007, in part because Colorado has more than 1,400 unsolved homicides.

The owners of Boulder’s Sterling University Peaks apartments, who this summer were cited for illegally subdividing 92 bedrooms in the complex, have reached an agreement to settle the case for $410,000, the city announced Thursday.